nozzle bmw 093400-6280 DN0PD628 pintle hole nozzle

JUN GAO

Body Material: Steel

Certification: TS16949

Trademark:China-lutong

Origin: China

Fuel: Diesel

Component: Auto Nozzle

Bosch Nozzle: 0 434 250 160

Specification: TS16949

HS Code: 8409919940

The carburetor typically contains a float bowl into which the expelled fuel is pumped. When the fuel level in the float bowl exceeds a certain level, the inlet valve to the carburetor will close, preventing the fuel pump from pumping more fuel into the carburetor. At this point, any remaining fuel inside the pump chamber is trapped, unable to exit through the inlet port or outlet port. The diaphragm will continue to allow pressure to the diaphragm, and during the subsequent rotation, the eccentric will pull the diaphragm back to bottom dead center, where it will remain until the inlet valve to the carburetor reopens.

Because one side of the pump diaphragm contains fuel under pressure and the other side is connected to the crankcase of the engine, if the diaphragm splits, it can leak fuel into the crankcase. The capacity of both mechanical and electric fuel pump is measured in psi (which stands for pounds per square inch). Usually, this unit is the general measurement for pressure, yet it has slightly different meaning, when talking about fuel pumps. In this context it denotes the speed, at which the pump delivers fuel from the tank to the engine. This is one of fuel pump characteristics. The higher pressure is, the faster fuel flows. 

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